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Your Trusted Geothermal HVAC Partner in Dallas
Excel Geothermal has been a leader in geothermal HVAC solutions for over 25 years, specializing in residential and commercial installations, well drilling, and maintenance. Our in-house teams handle every project phasefrom site evaluation to system integrationensuring precision and efficiency. With five drilling rigs and proprietary spray foam equipment, we eliminate third-party dependencies, reducing costs and delays. Our commitment to innovation and customer satisfaction is reflected in our 1,000+ completed projects and 30% federal tax credit eligibility for clients.

We prioritize environmental sustainability, offering systems that reduce energy consumption by up to 70% compared to conventional HVAC. Our team, led by industry expert Roy Schar, provides personalized service, 24-hour emergency support, and unmatched expertise in geothermal technology. By maintaining rigorous quality standards and fostering long-term client relationships, we deliver reliable, cost-effective heating and cooling solutions tailored to each property's unique needs.
Services
Geothermal Installation Well Drilling System Maintenance Spray Foam Insulation Residential HVAC Commercial HVAC
Highlights and features
  • We handle entire projects in-house with owned equipment and specialized teams.
  • 24-hour emergency service with rapid response times for critical issues.
  • 25+ years of geothermal expertise with 1,000+ successful installations.
  • Certified Minority-Owned Business offering diversity procurement advantages.
  • 30% federal tax credit eligibility for residential geothermal systems.
Associations and certifications
  • SBA.gov Minority Certification
What people say
Fantastic service Quick response time Expert problem-solving Energy savings Professional installation
Services
Geothermal Installation
Our geothermal installation process includes site evaluation, custom system design, loop field installation, and heat pump integration. We ensure optimal performance through rigorous testing and customer training. Systems reduce energy consumption by 50-70% compared to conventional HVAC while maintaining consistent indoor temperatures year-round.
Well Drilling
We specialize in vertical and horizontal geothermal well drilling using advanced equipment. Our process includes site assessment, thermal conductivity testing, and precise loop installation. Depths range from 150-500 feet for vertical systems or 4-6 feet for horizontal trenches, ensuring efficient heat exchange tailored to property constraints.
System Maintenance
Our maintenance program includes filter replacement, coil cleaning, refrigerant checks, and electrical inspections. Regular servicing extends system lifespan, maintains efficiency, and prevents costly breakdowns. We offer 24-hour emergency support for urgent repair needs.
Spray Foam Insulation
We apply high-quality spray foam insulation to enhance energy efficiency. Our expert technicians ensure proper application for optimal thermal performance, reducing air leaks and improving indoor comfort while lowering utility costs.
Commercial HVAC
We design and install large-scale geothermal systems for hospitals, schools, and commercial buildings. Our in-house teams handle complex projects with minimal disruption, delivering energy savings and reliable climate control for diverse commercial applications.
People
Roy Schar
President
With 25+ years in geothermal HVAC, Roy Schar founded Excel Geothermal and oversees 1,000+ installations annually. He trains technicians and manages large-scale projects, combining hands-on expertise with strategic leadership to maintain industry excellence.
Alexandra Schar
Podcast Host
Alexandra co-hosts the Excel Geothermal Podcast, sharing industry insights with her father Roy. She contributes to client education through content creation and digital engagement strategies for the company's outreach initiatives.
Questions
How cold can geothermal cooling get in summer?
Geothermal systems maintain indoor temperatures between 45-75°F year-round, remaining efficient even in extreme heat through underground loop systems.
How deep do geothermal wells go?
Vertical wells typically range 300-400 feet deep, while horizontal systems use 4-foot trenches. Depth depends on property space and geological conditions.
Does geothermal save money?
Systems reduce utility bills up to 80% by using 50-70% less electricity than conventional HVAC, with 30% federal tax credits available for residential installations.
Can geothermal work in extreme cold?
Yes, underground temperatures remain stable year-round, allowing geothermal systems to operate efficiently regardless of surface weather conditions.
Is geothermal better than solar?
Geothermal HVAC provides consistent climate control without weather dependency, while solar energy requires supplemental systems for reliable heating and cooling.
What maintenance does geothermal require?
Annual professional maintenance includes filter replacement, coil cleaning, refrigerant checks, and electrical inspections to ensure optimal system performance and longevity.
Videos